Knitting machine



H. T. OVERTON KNITTING MACHINE March 15, 1960 FiLed April 5. 1954 4Sheets-Sheet l 4 INVENTOR Hugh 1' fil/rbn Maia ATTORNEYS March 15, 1960H. T. OVERTON 2,923,266

KNITTING MACHINE Filed April 5, i954 4 Sheets-Sheet 2 INVENTOR my; 7."011 24572 ATTORNEYS March 15, 1960 H. T. OVERTON 2,928,

. v KNITTING MACHINE Filed April 5, 1954 4 Sheets-Sheet 3 mun INVENTORHa l ah T. Olrl'bh ATTORNEY) H. T. OVERTON KNITTING MACHINE March 15,1960 4 Sheets-Sheet 4 Filed April 5, 1954 INVENTOR [big/7 T. al rl'bn BYM ATTORNEYS United State a en This invention relates to improvements inknitting machines of the character used for knitting hosiery,particularly socks having patterns formed along the leg portionsthereof.

Knitting machines of the character used heretofore have been'capable offorming only limited patterns of relatively narrow width in oppositesides of the leg portions of socks. This has resulted from the fact thatsuch machines have been restricted to seven steps on the pattern drums.On the other hand, it is often desirable to increase appreciably therange of the various patterns knitted in such socks, both as tocircumferential disposition thereof and as to the character of thedifferent patterns. 3

One object of this invention is to increase appreciably the range andextent of the patterns provided in a knitting machine of the charactermentioned to produce uncams which are operated from the pattern drum tosup-- plement the operation of the plungers which'aremoved by cams onthe pattern disks. By providing two jack leveling cams movable bycontrol disks that may be located at each of two points in the height ofthe pattern drum, when the invention is used in connection with one formof knitting machine, as one embodiment of the invention, this willprovide four different ranges of control, in addition to the controlsprovided by the cams acting on the conventional plungers.

Special forms of jacks are provided having high and low butts thereonfor selective control by the respective jack leveling earns to providefor the actions thereof in controlling the needles. These butts areformed on the jacks to supplement the usual sawtooth butts thereon whichcooperate with the plungers that are moved by the pattern cams. Theadditional pattern discsactuate cams that cooperate with the high andlow butts on the jacks to cut in or cut out the jacks according to thepattern to be formed. In this way, the pattern range can be increasedfrom seven steps to thirteen or more steps on a machine originallydesigned for only seven steps.

I have also provided a blanking cam which acts on the butts of theneedles to lower the latter and thereby eliminate the pattern whenknitting portions of the sock. This blanking cam is operated in timedrelation with the machine, as for instance by a cam mounted on the drunrshaft, either directly on the main pattern drum or on a separate drummounted thereon and whichoperates in proper and desired relation to themain pattern drum.

This embodiment of the invention is illustrated in the accompanyingdrawings, inwhich: r

Fig. 1 is a partial side elevation of a knitting machine embodying thisinvention, with parts broken away and omitted;

Fig. 2 is a top plan view thereof;

Fig. 3 is a detail perspective view of the blanking cam operating means;

Fig. 4 is a diagrammatic view, partly in side elevation, showing theoperating means and cam drums for the cams;

Fig. 5 is a detail perspective view, partly in section, of the jackleveling cams and jacks;

Fig. 6 is a perspective view of the jack-leveling cams and assembly fromthe opposite side; I

Fig. 7 is a perspective view of one of the pattern disks, detached;

Fig. 8 is a vertical section through the needle cylinder, showing aneedle and jack; and

Fig. 9 is a side elevation of a knitted hose.

The invention is shown as applied to a knitting machine of aconventional form which operates in the usual way. Conventional parts ofthe machine are omitted from the drawings as unnecessary to anunderstanding of the invention.

The conventional machine frame is indicated generally 7 extendingvertically in'the periphery thereof within which grooves needles 12 areslidably mounted in the usual way. Each of the needles 12 is providedwith a butt v1 t thereon to be acted on by the blanking cam, hereinafterdescribed, for lowering the needle with respect to the cylinder 6 andfor moving it out of its operating position during the knitting ofportions of the sock in the regions of the heel and toe.

Also mounted in the lower end portions of the grooves 10 beneath therespective needles 12 are jacks 16. Each of the jacks 16 is constructedat its upper end to abut against the lower end of a superposed needle 12in the same groove 10, to liftthe needle in proper timed relation withthe operation of the machine. Each jack 16 is formed with the usualsawtooth butts, generally indicated at 18, at the lower end portionthereof. At the upper end of the row of sawtooth butts 18 is a pair ofspaced butts 20 and 22 in position for cooperative engagement with thejack leveling cams, as hereinafter described. The butts 20'and 22 arespaced apart a distance corresponding with twice the width of each buttso as to be acted on, respectively, by the jack leveling or selectingcams uponmanipulation of the latter by the cams on the pattern drum,thus providingthe necessary space for the selecting cams.

The pattern drum is illustrated generally at 24 and is supported onavertical shaft 26. The pattern drum is provided with a series ofcircular rows of cams formed on disks 27. The drum 24 may be fixed tothe shaft 26 and the disks 27 are also fixed to the drum 24. Each diskhas a row of cams on the periphery thereof, spaced apartcircumferentially. The disks 27 preferably are formed of relatively softmaterial in order that the cams may be broken off at selected intervalsaccording to the pattern to be formed by the machine.

As usual, two separate series'of pattern disks 27 are provided insuperposed relation, spaced axially of the shaft 26. In addition to theconventional pattern disks 27 provided on the drum 24, I have providedtwo pairs of special pattern disks 28 and 30 located, respectively,

Patented Mar. 15 1 960;

a aes:

at the upper end of each pattern series provided on the pattern drum 24.

The pattern drum 24 is adapted for step-by-step rotation in thedirection indicated by the arrow in Fig. 2, for which purpose thesupport for the pattern disks has secured to the lower end thereof aratchet wheel 32, operated by a pawl 34, which pawl 34 in turn ispowerdriven by the operating mechanism of the machine. This pawl usuallyis operated by a lever mechanism, which in turn is moved back and forthby cams power-driven in timed relation with the operation of themachine. This mechanism is well understood in knitting machines of thetype described and need not be described in detail.

The shaft 26 is mounted in a lever 36 (Fig. 2) pivotally supported at 38at one end thereof on a bracket 40, which extends laterally from thecircular base 4 of the frame structure of the machine. The opposite endofthe lever 36 projects laterally from the bracket 46 and is adapted forswinging movement relative to the latter, which movement is limited by apin and slot means, generally indicated at 42. The movable end portionof the lever 36 normally is urged toward the cylinder 6 by a spring 44connected with the lever 36 and with the bracket 40. Movement of thelever and drum 24 away from the cylinder 6 may be provided by a lever 46which acts on said projecting end of the lever 36. The lever 46 isoperated by the main cam drum in the conventional manner.

The shaft 26 is also mounted in the lever 36 for vertical or axialmovement relative thereto to present the different sets of pattern disks27 to the respective plungers. Such raising and lowering movement may beaccomplished in the usual manner, by an arm 45 (Fig. l) pivotallymounted on a bracket 47 on the machine. The arm 45 is connected with alink 49 operated by the main cam drum of the machine.

As noted above, the pattern drum 24 is provided with two sets of patterndisks 27 arranged in superposed relation. The respective sets of patterndisks operate to control the needle jacks 16 according to the axialposition of the pattern drum 24. In their raised or lowered position thepattern disks 27 have the cams thereon'in operative engagement withplungers 48 (Figs. 1 and 6), stacked as a unit in a guide 61 The innerends of the plungers '48 act to control the needle jacks 16 through theusual sawtooth butts 18 thereof, one for each plunger and pattern disk27. The action of these plungers, thus controlling the needles andjacks, is well understood in the art and need not be described indetail. These pattern disks 27 are arranged in a set to control theknitting of the pattern along the center portion of each side of thesock.

The pattern is also controlled by jack leveling or selecting cams Sitand 52 arranged in superposed relation in positions to act,respectively, on the butts 2d and 22 of each jack 16, the cam 50 actingon the butts 20 and the cam 52 acting on the butts 22.. These cams 56and 52 are spaced above the plungers 48, as will be apparent from Fig.l, and act independently thereof.

The usual master cam is provided in the machine, as indicated at 84. It.controls the usual knitting instrumentalities including needles 12 andthe jacks 16. The master cam 84 acts to control the conventional patterndrum discs 27 on the pattern drum 24, in the knitting of solid colors.One jack leveling or selecting cam 50, 52, acts on the low butts and theother on the high butts to pull the jacks down out of the path of themaster cam to keep the needles thereof from engaging the wrap yarn, andthereby to keep knitting the solid colors and to prevent the knitting ofthe patterns. Then the cams t), 52, act under the control of the specialdiscs 28 on the pattern drum 24 to provide for knitting special patterneffects. Thus any group or groups of jacks can be blanked out at anypoint desired.

. The double spacing of the butts 20 and 22 on each .4 jack enables thejack leveling or selecting cams and 52 to have room for operationindependently on the respective jacks. This allows for the use of twoblanking cams 56, 52, controlled by the pattern drum 24. Moreover, itprovides for the use of all three groups and to control each of thejacks in the side of the sock, grouped separately or together.

The cams 50 and 52 are carried by selector fingers 54 and 56,respectively, slidably mounted in superposed relation in a guide bracket65) (Fig. 2) supported above the circular base 4 of the machine andbeneath the ring 8. The linger selectors 54 and 56 are elongated, oneend of each of which carries the jack leveling or selecting cam 52,while the other end thereof is provided with a notch 62 in an edgethereof in position to receive one end of a bell-crank actuating member64, 66.

These bell-crank members 64 and 66 are mounted in superposed relation inpositions to engage the respective selector fingers 54, 56, and arepivotally supported at 68 upon a bracket 76 projecting outwardly from asupport plate 71 (Fig. 2) on the guide bracket 66. Mounting screws maybe used to secure the bracket 7i? to the plate 71, and providing forvertical adjustment of the members 6'4, 66, to obtain proper alignmentthereof with the pattern disks 28 and 30. Forward and backward adjustment relative thereto may be obtained by an adjustment of the pivotscrew 68 in a slot in the plate 70. The bracket 70 may be braced by apin 69.

One arm of each bell-crank member 64, 66, engages the selector finger54, 56, in the notch 62, while the other arm thereof extends intoengagement with the cams formed on the pattern disks 28 or 39, accordingto the axial disposition of the pattern drum 2'4.

Rotation of the pattern drum 24 thus causes swinging movement of therespective members 64, 66, the opposite ends of which are interengagedwith the selector fingers 54, 56, to slide the latter lengthwise, andthereby move the jack leveling or selecting earns 50, 52, into and outof engagement, respectively, with the butts 2t and 22 on the jacks.Thus, the positions of the jack leveling cams 56, 52, will be controlledby the cams on the pattern drum disks 28 and 38. The cams on the lattercan be varied, as desired, according to the pattern to be formed on themachine. The rocking movement of'the bellcrank members 64, 66, islimited by a guide clamp 72 secured upon the bracket 76- and throughwhich guide clamp 72 the bell-crank members 64, 66, extend.

The bell-crank members 64, 66, are moved to engage the pattern disks 28anclBt] by coiled springs 73 connected therewith. They may be disengagedfrom the pattern disks 28 and 30 by a bell-crank lever 74 with which acoiled spring 76 is connected at one end to a support 78 carried'by thebracket 46. The bell-crank lever 74 is pivotally mounted at 80 on theframe 2 of the machine, and is actuated by a link 82 from the main camdrum of the machine.

The main cam drum is indicated generally at 34 (Figs. 1 and 4), mountedon a drive shaft 86, power driven in a timed relation with the operationof the machine in the 48 to raise the needles 1?. for accomplishing therequired knitting operation. The plungers and sawtooth butts 18 willcontrol the movement of the jacks l6 and needles 12 to knit a pattern ineach side of the sock. Additional pattern eifects are obtained by thejack leveling or selecting cams 50, 52 operated, respectively, by thepattern disks 23 or 30, according to theaxial position of the patterndrum 24.

The respective jack leveling or selecting cams 50 and 52 act on the highand low butts of the jacks 16 in response to the cams on the patterndisks 28 or 30 0peratively connected therewith. These jack leveling orselecting earns 50 and 52 enable the operator to select any group orgroups of needle jacks according to the pattern elfects desired. By thesame set of pattern disks 27, I can very the spacing of the cams on therespective disks 28 or 30 and obtain very substantial variations in theknitted patterns. As an example, I can use some of the three sets ofjacks at different points, according to the actuation of the jackleveling or selecting cams 50 and 52 by the pattern disks 28 and 30.

xEach pattern disk 27, 28 and 30' has two steps, high and low, accordingto the positioning of the cams thereon. It is preferred that sevendifferent disks 27 be providedinfeach set or pattern group on the drum24, there being two sets of pattern disks spaced axially on the drum. Inaddition, there-are two pattern disks in each group 28 and 30 forcontrolling the jack leveling cams 50 and 52, the respective sets 28 and30 being at .the upper end of the cam disks 27. This provides fourdifferent ranges of control and increases the pattern range of themachine from seven to thirteen, which is a very substantial improvementin the effects obtained thereby. During the knitting of the leg of thesock,'it is desirable to knit pattern effects at any; wale of thefabric, but during the knitting of the sole thereof it is desirable toomit the patterning in the sole portions of the sock. This isaccomplished by a blanking cam shown at 90 (Figs. 2 and 3), which is inposition to act on the needle butts 14 to pull the needles down inproper timed relation. I

The blanking cam 90 is carried by a plunger 92 slidably mounted on abracket 93 for axial movement. A pin and slot connection 94 limits thesliding movement of the plunger 92. The outer end of the plunger 92 isturned upward at 95 and engaged by .a bifurcated end 96 on a lever 97,which lever is pivotally supported at 98 upon a support member 99extending upwardly from the bracket 40; The lever 97 normally is actedon by a torsion spring 100 tending to, move the plunger 92 inwardlytoward the cylinder 6 and thus holding the blanking cam 90 in the pathof the butts 14 of the needles, except when it is withdrawn by theaction of the lever 97.

The blanking cam 90 may be withdrawn outof the path of the needles uponoperation of the lever 97 by a bell-crank lever 102. The bell-cranklever 102 is pivotally supported at 104 on a support carried by thebracket 40. One arm of the bell-crank lever 102 is in position to,engage the lever 97, while the otherarm thereof is connected with a link106 extending downwardly in the machine in guided relation with theframe thereof.

The lower end of the link 106 carries a roller or follower 108 in thepath of a cam 110. While the earn 110 could be mounted on the main camdrum 84, it is preferred that these parts be disposed laterally of theframe portion 2 and that a separate cam drum 112 be provided on theshaft 86 for mounting the earn 110 and thereby operating the link 106. va v The blanking cam is out during the knitting of the pattern. Afterthe pattern is completed in the leg porfour courses before knitting theheel and then it falls out of operation while knitting the heel. Afterthe heel is completed, the blanking cam 90 goes back into operation,.and comes out of operation twenty-four courses This allows thecontiriued the patdisks27 in each group. I

With the ,seven steps in each group of jacks in the cylinder 6 and withthe two sets of special pattern disks 28 and 30 and the high and lowbuttson the jacks, the patterns can be increased to thirteen steps ormore, even though the machine originally was constructed for.;only

' seven steps.

The same pattern disks can be used to make different patterns bychanging the jacks so as to have the high and low butts in differentrelations to each other. Thus, the'high butts can'be located at the topand the low butts at the bottom, or vice versa, or these may be instaggered relation, according to the pattern desired. In setting up thepattern on the pattern drum 24, disks 27, 28 and 30 arejarranged tocorrespond with the desired pattern in the usual way, except that thespecial disks 28 and 30 are arranged at the top of each set of patterndisks 27. Then the pattern can be changed readily by removal of one setofdisks and replacing it with another, or by arranging the disks inanother relation to each other. This can be done very quickly, evenwhile knitting the toe pocket, when the pattern drum would be out ofoperative position. 7 v

'The blanking cam 90 operates on the butts of the needles and pushes thejacks. down'below the master cam in order that the latter cannot raisethe jacks. Half of the needles on the cylinder 6 are usually providedwith long butts and the other half with short butts. The long butts ofthe needles would travel over the top of the blanking cam 90 and beengaged thereby to push the jack up, while the short butts would travelunder this cam and would pullv the jack down. The addition of thejackleveling cams 50 and52 increases very appreciably-the range of patternsthat are possible on the. machine. Many variations of patterns can bemade from one set of pattern disks. These jack selecting earns 50 and 52will enable the operator to select any desired group or groups of needlejacks. As an example, it is possible to use some of the three sets 'ofjacks atdifferent points, or to select these in whatever combination maybe desired.

An example of the patterns that are possible to be knittedon thismachine is illustrated in Fig. 9, although it will be. recognized thatmany variations thereof are also possible. In this example the sock S isprovided with a clock down the side and also with additionalornamentation, all of which are formed by using one set of pattern diskswith some of the three sets of jacks at different points. The clock downthe side is formed with a stagger a and with zigzag lines 12, as well asdiamonds c. The range of the pattern-is increased appreciably bythestaggered disposition of separate and joined diamonds d and e, which notonly increases the pattern circumferentially, but also the differenttypes of patterns that can be produced on the seven-step ma,- chine,with a single set of cam disks which control the needle jacks. Thus thepattern in the side can go seven steps to the left of center and alsoseven steps to the right of center, as having different pattern effects,some of which are illustrated at d and e, outside of the center clock.Thus, it is possible to havethirteen or more steps onthe seven stepmachine.

The reason for having different lengths of butts 20 and 22 on the jacks16 will be apparent from the example of the pattern illustrated in Fig.9. The first pattern d Inasmuch as the conventional machine has thejacks thereof arranged in seven steps, there will be seven at the rightin Fig. 9 has a double row of loops which are produced by the long buttsat the top of the respective jacks 16, while the center pattern at theright in Fig. 9, which has a single row of loops, is formed with onehalfshort butts at the top, as indicated at 20, and the other one-halfhaving short butts at the bottom, as indicated at 22. The last patternon the left side has the long butts 22 at the bottom.

The jack leveling cam 50 is moved out of the path of the long butts 20of the first pattern, and also out of the path of the butts 20 on thefirst half of the center pattern. Then the cam 52 moves out half way,clearing the short butts 22 on the last half of the center pattern andpulling down the long-butt jacks on the last pattern to the left. Thesecams i and 52 are controlled by the pattern disks 28 and 30 which can bearranged so that the cams thereon will move the earns 50 and 52 to formthe pattern at any time desired and at any point in the knittingoperation.

It will be noted from the stagger a and also from the diagonal lines ofthe double diamond effects, that it is possible with this constructionto extend each of these.

pattern effects over thirteen steps transversely of the pattern. This isa marked increase because prior machines have been limited to not morethan seven steps transversely of the machine.

While the improvements have been illustrated and described in theirrelations to a conventional knitting machine, further details of saidconventional machine are found disclosed in the Lawson et al. PatentsNo. 2.090,597, August 17, 1937, and No. 2,208,698, July 23, 1940.

Moreover, while the invention has been illustrated and described in oneembodiment, it is recognized that variations and changes may be madewithout departing from the invention, as set forth in the claims.

I claim:

1. In a knitting machine having a main cam drum and knitting mechanismcontrolled by said main cam drum, said mechanism including needles andcooperating jacks for the respective needles, each of the jacks havinglongitudinally spaced butts thereon, jack leveling cams above at leastsome of the spaced butts and arranged to engage the butts and pull downthe jacks, a pattern drum, and means actuated by the pattern drum formoving said cams.

2. In a knitting machine having a main cam drum and knitting mechanismcontrolled by said main cam drum, said mechanism including needles andcooperating jacks for the respective needles, each of the jacks havinglongitudinally spaced butts thereon, jack leveling cams above at leastsome of the spaced butts and arranged to engage the butts and pull downthe jacks, a

pattern drum including a plurality of pattern disks, members carryingthe jack leveling cams, and means actuated by the pattern disks formoving said members to operate the jack leveling cams into and out ofthe path of the butts on the jacks, the butts on each jack being spacedapart approximately double the Width of each butt.

3. In a knitting machine having a main cam drum and knitting mechanismcontrolled by said main cam drum, said mechanism including needles andcooperating jacks for the respective needles, each of the jacks havinglongitudinally spaced butts thereon, jack leveling cams above at leastsome of the spaced butts and arranged to engage the butts and pull downthe jacks, a pattern drum having a plurality of pattern disks thereon,members carrying the jack leveling cams thereon, and means actuated bythe pattern disks for operating said members to move the cams into andout of the path of the jack butts.

4. In a knitting machine, the combination of needles and cooperatingjacks for the respective needles, each of a or the jacks having a row ofbutts on the lower end por tion thereof and a pair of butts at the upperend of said row of butts, a pattern drum having pattern disks thereonwith cams on said pattern disks, jack leveling cams arranged forrespective cooperation with the pair of butts on each jack, meansactuated by the pattern disk cams for controlling the jack levelingcams, and means actuated by the pattern disk cams and cooperating withthe row of butts on each of the jacks for controlling the positions ofthe jacks.

5. In a knitting machine having amain cam drum and knitting mechanismcontrolled by said main cam drum, said mechanism including needles andcooperating jacks for the respective needles, each of the jacks having arow of butts on the lower end portion thereof and a pair of butts at theupper end of said row of butts, a pattern drum having pattern disksthereon with cams on said pattern disks, jack leveling cams arranged forrespective cooperation with the pair of butts on each jack forcontrolling the positions of the jacks, selector fingers supporting thejack leveling cams, means co operating with the row of butts on eachjack for controlling the position of said jack, and means actuated bythe pattern disk cams for operating the selector fingers to control thejack leveling cams.

6. In a knitting machine having a main cam drum and knitting mechanismcontrolled by said main cam drum, said mechanism including needles andcooperating jacks for the respective needles, each of the jacks having arow of butts on the lower end portion thereof and a pair of butts at theupper end of said rowof butts, a pattern drum having pattern disksthereon with cams on said pattern disks, jack leveling cams arranged forrespective cooperation with the pair of butts on each jack forcontrolling the positions of the jacks, selector fingers supporting thejack leveling cams, lever members operatively connected with theselector fingers and having an operative connection with the patterndisk cams, means cooperating with the row-of butts on each jack forcontrolling the position of said jack, and means operatively connectedwith said lever members for moving the jack leveling cams out ofcooperative relation with the pair of butts.

7. In a knitting machine having a main cam drum and knitting mechanismcontrolled by said main cam drum, said mechanism including needles andcooperating jacks for the respective needles, each of the jacks having arow of butts on the lower end portion thereof and a pair of butts at theupper end of said row of butts, a pattern drum having pattern disksthereon with cams on said pattern disks, jack leveling cams, arrangedfor respective cooperation with the pair of butts on each jack forcontrolling the positions of the jacks, selector fingers supporting thejack leveling cams thereon, means mounting said selector fingers formovement thereof to move the jack leveling cams out of the path of thepair of butts on the jacks, bell crank levers operatively connected withthe selector fingers and having portions thereof in operative engagementwith a pair of the pattern disks for ope ation thereby to move the jackleveling cams into and out of operative relative with the pair of buttson each jack, and means cooperating with the row of butts on each jackfor controlling the position of said jack.

8. in a knitting machine having a main cam drum and knitting mechanismcontrolled by said main cam drum, said mechanism including needles andcooperating jacks for the respective needles, each of the jacks having arow of butts on the lower end portion thereof and a pair of butts at theupper end of said row of butts, a pattern drum having pattern disksthereon'with cams on said pattern disks, jack leveling cams arranged forrespective cooperation with the pair of butts on each jack forcontrolling the positions of the jacks, selector fingers supporting thejack leveling cams thereon, means mounting said selector fingers forsliding movement thereof to move the jack leveling cams out of the pathof the pair of butts on the jacks, bell crank levers operativelyconnected with the selector fingers and having portions thereof inoperative engagement with a pair of the pattern disks for operationthereby to move the jack leveling cams out of operative relation withthe pair of butts on each jack, means acting on'the bell crank leversfor moving the selector fingers into operative relation with the pair ofbutts, and cam actuated means operatively connected with the bell crankmembers for moving the latter to disengage the disks on the pattern drumand thereby withdrawing the jack leveling cams from operative relationwith the pair of butts, and means cooperating with the row of butts oneach jack for controlling the position of said jack.

9. In a knitting machine, the combination of needles and cooperatingjacks for the respective needles, each of the jacks having a row ofbutts on the lower end portion thereof and a pair of butts at the upperend of said row of butts, a pattern drum having pattern disks thereonwith cams on said pattern disks, jack leveling cams arranged forrespective cooperation with the pair. of butts on each jack, selectorfingers supporting the jack leveling cams thereon, means mounting saidselector fingers for movement thereof to move the jack leveling cams outof the path of the pair of, butts on the jacks, bell crank leversoperatively connected with the selector fingers and having portionsthereof in operative engagement with a pair of the pattern disks foroperation thereby to move the jack leveling cams out of operativerelation with the pair of butts on each jack, means acting on the bellcrank levers for moving the selector fingers into operative relationwith the pair of butts, and plungers operatively connected with aplurality of said row of butts on each jack to control the positions ofthe jacks.

g 10. In a knitting machine, the combination with a main cam drum andknitting mechanism controlled by said main cam drum, said mechanismincluding needles and cooperating jacks for the respective needles, eachof the jacks having a row of butts connected therewith and a pair ofseparate butts adjacent thereto, of a pattern drum having pattern meansthereon, jack levelling cams arranged for respective cooperation withthe pair of butts on each jack, means actuated by the pattern meanspattern disks and in positions for engagement with the V levelling cams.

References Cited in the file of this patent UNITED STATES PATENTS546,986 Adgate Oct. 1, 1895 1,434,108 Egan Oct. 31, 1922 2,025,913Taggart Dec. 31, 1935 2,201,716 Davis May 21, 1940 2,208,308 Lawson eta1. July 16, 1940 2,208,698 Lawson et aI July 23, 1940 2,217,022 Lawsonet a1. Oct. 8, 1940 2,244,870 Green et a1. June 10, 1941 2,287,001Lawson June 16, 1942 2,323,998 Hutton et a1. July 13, 1943 2,378,315Minton June 12, 1945 2,378,316 Minton June 12, 1945 2,387,253 Getaz Oct.23, 1945 2,423,989 Manger et a1 July 15, 1947 2,516,697 Haddad July 25,1950 2,670,617 Bryant Mar. 2, 1954 2,679,737 St. Pierre 1 June 1, 1954

